Extending Sprinkler Heads with Funny Pipe: 11 Feet Is Too Far

Funny Pipe Length Limit: Keep It Under 4 Feet for Performance

1" PVC laterals, want to move heads 11 ft using funny pipe (flex tubing). Don't do it.

Why 11 ft of Funny Pipe Fails

• Funny pipe (swing pipe) has high friction loss—designed for 1–3 ft "swing" only.
• 11 ft robs pressure/flow → head doesn't reach radius, poor coverage.
• Not rated for constant-pressure lateral duty.

Correct Method

1. Tee off 1" PVC lateral at desired location. 2. Run 1" PVC to within 1–4 ft of new head position. 3. Use funny pipe only for the final 1–4 ft to head.

Result

Full pressure at head, optimal radius, matched precipitation. Funny pipe does its job: vibration isolation, not water conveyance.